384Keysight InfiniiVision DSOX1204A/G Oscilloscopes Programmer's Guide20:MEASure Commands:MEASure:TVALue(seepage 798)Query Syntax:MEASure:TVALue?, [][,]::= thevertical value that the waveform must cross.Thevaluecan be volts or a math function value such as dB,Vs,or V/s.::= direction of the waveform.A rising slope is indicatedbyaplus sign (+).A falling edge is indicated by aminussign (-). ::=the transition to be reported. If the occurrencenumber is one, the first crossing is reported.Ifthe number is two, the second crossing is reported,etc.::= {CHANnel | FUNCtion | MATH | WMEMory} ::=1to (#analog channels) in NR1 format ::=1-2 inNR1 formatWhen the :MEASure:TVALue? query is sent, the displayed signal is searched forthe specified value level and transition. The time interval between the trigger eventand this defined occurrence is returned as the response to the query.The specified value can be negative or positive. To specify a negative value, use aminus sign (-). The sign of the slope selects a rising (+) or falling (-) edge. If no signis specified for the slope, it is assumed to be the rising edge.The magnitude of the occurrence defines the occurrence to be reported. Forexample, +3 returns the time for the third time the waveform crosses the specifiedvalue level in the positive direction. Once this value crossing is found, theoscilloscope reports the time at that crossing in seconds, with the trigger point(time zero) as the reference.If the specified crossing cannot be found, the oscilloscope reports +9.9E+37. Thisvalue is returned if the waveform does not cross the specified value, or if thewaveform does not cross the specified value for the specified number of times inthe direction specified.If the optional source parameter is specified, the current source is modified.Return Format::= timein seconds of the specified value crossing inNR3formatNOTEThis query is not available if the source is FFT (Fast Fourier Transform).
